Realme X3 vs vivo iQOO 9

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 3, 5, 8, 38, 39, 40, 41

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41
5G network

-

5G band 1, 3, 5, 8, 28, 41, 77, 78 SA/NSA
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 5), glass back, plastic frame

Aluminium alloy, glass
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

163.8 mm

159.1 mm
Width

75.8 mm

75.1 mm
Thickness

8.9 mm

8.6/8.7 mm
Weight

202 g

200/202 g
Colors

Blue, White

Alpha, Legend, Phoenix

Main camera
Camera type

Quad

Triple
Main camera

64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm

48 MP, f/1.8 , 25 mm, 1/2.0" , 0.8 µm, (wide)
12 MP, f/2.5 , 51 mm, 2x optical zoom

13 MP, f/2.5 , 50 mm, 2x optical zoom , (telephoto)
8 MP, f/2.3 , 16 mm, 1/4.0" , 1.12 µm

13 MP, f/2.2 , 16 mm, 120˚ , (ultrawide)
2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

8160 x 6144 pixels
Primary camera video

4K@30/60fps, 1080p@30/60fps, 720p@960fps; gyro-EIS

4K@30fps, 1080p@30fps
Primary camera flash

LED flash

dual-LED dual-tone flash
Camera features

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus

Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, RAW

Selfie camera
Selfie camera type

Dual

Single
Selfie camera

16 MP, f/2.0 , 26 mm, 1/3.06" , 1.0 µm

16 MP, f/2.5 , 1/3.1" , 1.0 µm, (wide)
8 MP, f/2.2 , 1/4.0" , 1.12 µm
Selfie camera resolution

4640 x 3456 pixels

-
Selfie camera features

-

Face unlock, HDR
Selfie camera video

1080p@30fps, gyro-EIS

1080p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
BDS

Yes

-
QZSS

Yes

-

Features
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Accelerometer, compass, fingerprint, gyroscope, proximity

Battery
Battery type

Li-Po

Li-Po
Battery capacity

4200 mAh

4350 mAh
Battery removable

Non-removable

Non-removable
Fast battery charging

SuperVOOC Flash Charge (100% in 55 min)

Yes, 120W(50% in 6 min, 100% in 18 min)
Wireless reverse charging

-

Yes, 10W
Talk time 4G

-

14.1 h